Title :
Ultrafast electron-hole dynamics and optical gain in CdSe/CdS nanorods
Author :
Lupo, M.G. ; Sala, F. Della ; Carbone, L. ; Zavelani-Rossi, M. ; Fiore, A. ; Lüer, L. ; Polli, D. ; Cingolani, R. ; Manna, L. ; Lanzani, G.
Author_Institution :
Dipt. di Fis., Politec. di Milano, Milan, Italy
Abstract :
Pump-probe on CdSe/CdS dot/rod gives evidence of electron delocalization and of hole transfer from the rod to the dot with a time constant of about 700 fs. We discovered Amplified Stimulated Emission and lasing in some nanocrystal films.
Keywords :
cadmium compounds; colloidal crystals; high-speed optical techniques; nanostructured materials; superradiance; CdSe-CdS; amplified stimulated emission; electron delocalization; hole transfer; nanocrystal films; nanorods; optical gain; ultrafast electron-hole dynamics; Bleaching; Charge carrier processes; Nanocrystals; Nanostructured materials; Optical films; Optical pumping; Semiconductor films; Semiconductor materials; Stimulated emission; Ultrafast optics; ASE; Lasing; Nanocrystals; Ultrafast dynamics;
Conference_Titel :
Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009. CLEO/PACIFIC RIM '09. Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3829-7
Electronic_ISBN :
978-1-4244-3830-3
DOI :
10.1109/CLEOPR.2009.5292311
